Home / 26,859.62-40,286.22-7,139.69

Finding the Fourth Proportional to 26,859.62, 40,286.22 and 7,139.69

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Solution

The fourth proportional to 26,859.62, 40,286.22 and 7,139.69 is: 10,708.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,859.62 : 40,286.22 = 7,139.69 : x
  2. Step 2: Convert to fraction form
    26,859.62/40,286.22 = 7,139.69/x
  3. Step 3: Cross multiply
    26,859.62x = 40,286.22 × 7,139.69
  4. Step 4: Simplify right side
    26,859.62x = 287,631,122.07
  5. Step 5: Solve for x
    x = 287,631,122.07/26,859.62
  6. Step 6: Final answer
    x = 10,708.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.